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Jenkins – Public cloud installation
Hi Team, Sometimes I was struggling with my VM to install and test my favorite software. Many problem can occur, VM can crash , need to install again, select the correct image computer , manage...
View ArticlePatching an IBM Db2 instance
The next task in my journey with DB2 is to apply a patch. In the world of DB2 there are Modification Packs and Fix packs. As far as I understand it, Modifications Packs come with new features, while...
View ArticleOracle Database Appliance (ODA): Adjusting to the new ORACLE_BASE-setting...
By Clemens Bleile From Oracle Database Appliance (ODA) version 19.11. onwards the ORACLE_HOMEs and ORACLE_BASE will be created on ACFS, i.e. take space from an ASM-diskgroup instead of taking...
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Clone Oracle 21c Home
When deploying new Oracle Home on the same server or on a new server, you may use the downloaded Oracle binaries and do an install from scratch as usual. You may then apply any patch you have on your...
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Oracle Partition and Performance of massive/concurrent Inserts
For a customer, I had to check if partitioning improves performance of massive and concurrent inserts. The goal is to execute several Inserts in parallel via dbms_parallel_execute package (my previous...
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Do you know Rancher Desktop?
Today I stumbled across Rancher Desktop and thought I’ll give it a try. If blogged about Rancher in the past but all those blogs talked about the full blown Rancher project. Rancher Desktop brings you...
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How to manage Job Log in On Do Action
Normally we can trigger an On Do Action based on string found in the Job Output. But we would like to do the same for a Job log, that feature doesn’t exist, but there is a way to make it working. Let’s...
View ArticlePostgreSQL 15: New function to list flags associated to GUCs
As development of PostgreSQL 15 is on its way, more and more features get committed. Today we’ll look at a new feature which is not a hammer feature, but a nice thing to have and to know about. If you...
View ArticleUpdating Password in PostgreSQL from md5 to scram-sha-256
Many installations have a history of many major PostgreSQL releases. With PostgreSQL 10 comes scram-sha-256 for hashing password, by installing from packages scram-sha-256 is the default setting for...
View ArticleWhat is Variable Precedence in Ansible?
In Ansible, definition of variable precedence is often overlooked. Despite what I wrote in my previous blog (Use Ansible like a Programming Language), Ansible is not exactly a programming language....
View ArticleORDS with TNS
The aim of that blog is to look into Oracle REST Data Services (ORDS) DB connection with TNS. This is following some experience at a customer who wanted to move to latest version of ORDS with APEX...
View ArticlePostgreSQL 15: New option for NULL handling in unique constraints
Another nice feature was just committed for PostgreSQL 15: Add UNIQUE null treatment option (discussion here, commit details here). What is it about? The answer is quite easy if we do a little example...
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How to install a specific version of MariaDB
Recently, we had to upgrade a MariaDB server from version 10.5.4 to 10.5.13. Before to do the upgrade on a production server, I wanted to test it on a personal VM. But first, I had to find how to...
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How to configure Linux Server to run Oracle Database 19c on Persistent Memory
Introduction to Persistent Memory In the last few years, storage media have become more and more advanced and faster. Today, SSD disks are almost standard as storage and if an Oracle database really...
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Import tnsnames.ora in LDAP directory
This post gives a short intro to directory naming, shows how to import from tnsnames.ora to an LDAP directory. Finally, as an alternative, you get an example how a TNS connection string looks like in...
View ArticleCreating KVM Database System on separate VLAN network on ODA
Oracle appliance is proposing various possibilities for creating databases either on the Bare Metal or using KVM DB System. Each DB System will host a single database in a separate VM. What about...
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Migrating from CentOS 8 to AlmaLinux 8
In our blogs we already talked about Migrating a CentOS 7 EC2 instance to Rocky Linux 8 and CentOS 8 machine to Red Hat 8 , but how does it look like if you want to migrate your CentOS8 machine to...
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Character Sets and Oracle 21c PDBs : How It Works
When creating a database in a multitenant environment we must understand how character set works for CDB and PDBS. In Oracle documentation we can find following lines -When the character set of the CDB...
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SQL Server: Last duration for all SQL Server jobs in TIME format from HHmmss...
For a customer, I want to see all last duration for a job and have a good format for it. The query to do it is very simple (at the beginning…) but when I try to have a better view it was more...
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Managing Refreshable Clone Pluggable Databases with Oracle 21c
A refreshable clone PDB is a way to refresh a single PDB instead of refreshing all PDBs in a container as in a Data Guard environment. It consists to make a clone of a source PDB and the clone PDB is...
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